Transitions questions give you a short passage with a blank between two ideas, followed by the prompt “Which choice completes the text with the most logical transition?” Your job is to identify the logical relationship between the sentence (or idea) before the blank and the sentence (or idea) after it—contrast, cause and effect, chronology, elaboration, or addition—and choose the one word or phrase that correctly signals that relationship.
Every answer choice is a grammatically legitimate transition; what makes three of them wrong is that each misrepresents how the two ideas actually connect, for example inserting an addition word (furthermore) where the text calls for a contrast (however), or a cause-and-effect word (therefore) where the text calls for a simple restatement (that is). The correct choice is the one whose meaning matches the logic already present in the passage, not merely the one that sounds smooth when read aloud.
Example 1
Volcanic eruptions destroy vegetation and can bury farmland under layers of ash within hours, forcing nearby communities to abandon fields that once produced reliable harvests. ______ the same ash gradually breaks down into nutrient-rich soil, and within a few decades the surrounding land often becomes some of the most fertile farmland in the region.
Which choice completes the text with the most logical transition?
A
Eventually,
B
Instead,
C
For example,
D
Consequently,
Choice A is the best answer. “Eventually” logically signals that the land becoming fertile farmland is a later stage in a chronological sequence that begins with the ash burying the fields, described in the previous sentence. Choice B is incorrect because “instead” illogically signals that the fertile soil is an alternative to the destruction just described, when it is instead a later outcome of the very same ash. Choice C is incorrect because “for example” illogically signals that the fertile soil illustrates the destruction described earlier, when it instead describes a distinct, later stage in the same process. Choice D is incorrect because “consequently” illogically signals that the fertile soil is an immediate result of the destruction, when the passage instead emphasizes a gradual change that unfolds over decades.
Example 2
Bats emit high-frequency calls and listen for the returning echoes to build a detailed picture of obstacles and prey in complete darkness, a technique known as echolocation. ______ dolphins produce clicking sounds underwater and interpret the echoes to navigate and locate fish in murky or dark water, relying on essentially the same principle.
Which choice completes the text with the most logical transition?
A
Similarly,
B
Therefore,
C
Instead,
D
Specifically,
Choice A is the best answer. “Similarly” logically signals that dolphins’ use of echoes to navigate parallels the bats’ use of echolocation described in the previous sentence. Choice B is incorrect because “therefore” illogically signals that dolphin echolocation is a result of bat echolocation, when the two are simply comparable, independent examples of the same principle. Choice C is incorrect because “instead” illogically signals that the dolphin example replaces or contradicts the bat example, when the sentence instead adds a second, similar case. Choice D is incorrect because “specifically” illogically signals that the dolphin example narrows down or clarifies a detail of the bat example, when it instead introduces a separate species using the same technique.
Tips for solving
Read the sentence before and the sentence after the blank as a pair; the correct transition must match the logical relationship between those two ideas, not just sound smooth.
Example: Deep-sea anglerfish live in complete darkness and cannot rely on visual cues to find mates. ____ female anglerfish emit a bioluminescent glow to attract potential partners across vast distances.
Incorrect Choice: However, (Sounds smooth, but anglerfish using light adapts to the darkness rather than contradicting it).
Correct Choice: To address this challenge, (Matches the exact logical connection between a problem and its functional solution).
Before looking at the choices, decide for yourself what kind of relationship is needed—contrast, cause and effect, chronology, elaboration, or addition—then find the choice that matches.
Example: Many soil microbes perish when exposed to extreme heat. ____ certain spore-forming bacteria can survive temperatures exceeding 100°C by entering a dormant state.
Relationship Needed: Contrast / Exception (First sentence states a general rule; second sentence presents an exception).
Matching Choice: In contrast,
Every choice is a grammatically valid transition; the wrong ones are wrong only because they misstate the logical connection, such as using an addition word where the text needs a contrast.
Example: The museum's new exhibit features interactive displays designed to engage younger visitors. ____ it includes rare historical artifacts that appeal to academic researchers.
Sentence 1: Exhibit has interactive features for youth.
Sentence 2: Exhibit has rare artifacts for scholars.
Incorrect Choice: Consequently, (Misstates the connection as cause-and-effect).
Correct Choice: Additionally, (Correctly identifies that Sentence 2 is adding another feature of the exhibit).
Be especially careful with less common transitions such as granted, that is, and again and again—they are correct only when the passage truly shows a concession, a restatement, or a repeated action.
Example: The newly designed bridge can withstand winds up to 120 miles per hour. ____ extreme hurricane-force winds could still compromise its structural integrity.
Incorrect Choice: That is, (Incorrect because Sentence 2 is not clarifying or restating Sentence 1).
Correct Choice: Granted, (Correct because Sentence 2 concedes a limitation to the claim made in Sentence 1).
Watch for reversal traps: a cause-and-effect word (therefore, thus) placed where the passage actually shows a contrast, or a contrast word placed where the passage shows a result.
Example: The city council significantly increased funding for public bus routes this year. ____ ridership grew by 35% over the following six months.
Reversal Trap Choice: Nevertheless, (Wrongly uses a contrast word when Sentence 2 is a direct result of Sentence 1).
Correct Choice: As a result, (Correctly uses a cause-and-effect transition).
Do not choose a transition just because it introduces a true or reasonable-sounding fact; it must also correctly describe how that fact relates to the sentence before it.
Example: The James Webb Space Telescope uses high-resolution infrared sensors to capture images of distant galaxies. ____ infrared light can pass through dense clouds of cosmic dust that block visible light.
Incorrect Choice: In conclusion, (Introducing a fact about physics is an explanation, not a summary/conclusion).
Correct Choice: This is because (Correctly explains why infrared sensors are used, matching the relationship to the previous sentence).
Once you choose an answer, reread the whole passage with your choice plugged in to confirm the logic holds from start to finish.
Example: Archaeologists initially believed the ancient settlement was abandoned due to severe drought. ____ recent excavations uncovered large grain storage silos filled with preserved crops from the final period of habitation.
Candidate Choice: However,
Verification Read: "Archaeologists initially believed the ancient settlement was abandoned due to severe drought. However, recent excavations uncovered large grain storage silos filled with preserved crops..."
Logic Check: "Initially believed X... However, new evidence disproves X." The transition holds up logically from start to finish.
Practice questions
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Question 1 · easy
In 1903, the Wright brothers achieved the first sustained, powered flight at Kitty Hawk, remaining airborne for a mere twelve seconds. Engineers spent the next several years testing new wing shapes and stronger engines to extend flight times. ______ in 1909, Louis Blériot flew an airplane across the English Channel, proving for the first time that aircraft could cross open water.
Which choice completes the text with the most logical transition?
Question 2 · easy
Electric eels generate powerful discharges of electricity from specialized cells called electrocytes, using the current to stun prey and deter predators in the murky rivers of South America. ______ electric rays, which live in coastal ocean waters, produce their own electric shocks using modified muscle tissue to capture fish and defend themselves.
Which choice completes the text with the most logical transition?
Question 3 · easy
Iron rusts only when it is exposed to both oxygen and water at the same time, since the chemical reaction that forms rust requires the presence of each. ______ engineers coat iron beams and pipes with paint or zinc to keep moisture and air away from the metal’s surface.
Which choice completes the text with the most logical transition?
Question 4 · easy
On many isolated islands, small mammals such as mice have evolved into unusually large forms over many generations, a pattern biologists call island gigantism. ______ large mammals that reach islands, such as elephants, often evolve into much smaller forms instead, a pattern known as island dwarfism.
Which choice completes the text with the most logical transition?
Question 5 · easy
Rising ocean temperatures place severe stress on coral reefs, causing corals to expel the colorful algae that live in their tissues and provide them with food. ______ a 2016 survey found that roughly two-thirds of the coral in one large reef system had turned white after a period of unusually warm water.
Which choice completes the text with the most logical transition?
Question 6 · easy
Beginning in the 1910s, activists in the United States organized marches, petitions, and public speeches demanding that women be granted the right to vote. Congress debated and rejected similar proposals for years despite this sustained pressure from activists across the country. ______ in 1920, the Nineteenth Amendment was ratified, granting women throughout the nation the right to vote.
Which choice completes the text with the most logical transition?
Question 7 · easy
During hibernation, a ground squirrel’s heart rate can drop from around 200 beats per minute to as few as five, and its body temperature falls to nearly match the temperature of its burrow. ______ the animal’s energy needs decrease dramatically, allowing it to survive an entire winter on stored fat alone.
Which choice completes the text with the most logical transition?
Question 8 · easy
Both diamond and graphite are made entirely of carbon atoms, yet diamond is one of the hardest known natural materials on Earth. Graphite, however, is soft enough to leave a mark on paper and is used as the core of pencils. The two minerals are not identical in structure; ______ their atoms are arranged in completely different patterns, which explains their strikingly different properties.
Which choice completes the text with the most logical transition?
Question 9 · easy
Charles Darwin observed that finches on different islands of the Galápagos archipelago had beaks of noticeably different shapes and sizes, each suited to a particular type of food available on that island. ______ he noted that the finches’ body sizes and feather colors also varied slightly from island to island, further suggesting that isolated populations had adapted to their local surroundings.
Which choice completes the text with the most logical transition?
Question 10 · easy
The introduction of zebra mussels to the Great Lakes has disrupted local ecosystems in several measurable ways. ______ the mussels filter enormous volumes of water each day, removing so much plankton that native fish species that depend on plankton for food have declined sharply in affected lakes.
Which choice completes the text with the most logical transition?
